Claude Sonnet 4.5 logo

Claude Sonnet 4.5

Paid

Anthropic's Claude Sonnet: intelligent, agentic AI for coding and professional work.

4.7
Inputs: text, codeOutputs: text, code
Type
Saas
Founded
2021
Company
Anthropic

About Claude Sonnet 4.5

Claude Sonnet is a family of AI models by Anthropic, designed for agentic coding and professional tasks. The latest Sonnet 5 offers top-tier intelligence for everyday work, code generation, data visualization, and extended reasoning. Available through the Claude platform with tiers from free to enterprise, it features web search, memory, file execution, desktop extensions, Slack and Google Workspace integration, remote MCP connectors, voice mode, and specialized tools like Claude Code, Cowork, Design, and Science.

Key Features

Ability to search the web
Memory across conversations
Create files and execute code
Desktop extensions
Connect Slack and Google Workspace services
Integrate any context or tool through connectors with remote MCP
Extended thinking for complex work
Incognito chats
Claude Code
Claude Cowork

Pros & Cons

Pros
  • Strong agentic capabilities for complex, multistep tasks
  • Web search and memory for context-aware interactions
  • Flexible pricing plans including a free tier
  • Integration with popular tools like Slack and Google Workspace
  • Extended thinking for deep reasoning and analysis
Cons
  • Enterprise pricing requires contacting sales
  • Usage limits apply on Pro and Max plans
  • Advanced features like Claude Code and Science are only available on paid plans

Best For

Coding and software developmentData visualization and analysisWriting, editing, and content creationResearch and academic workProfessional productivity and task automation

Alternatives to Claude Sonnet 4.5

FAQ

What is Claude Sonnet?
Claude Sonnet is a family of AI models by Anthropic, with the latest version (Sonnet 5) offering top-tier intelligence for coding and everyday professional work, including agentic capabilities and extended thinking.
What pricing plans are available for Claude?
Claude offers Free, Pro ($17/month annual or $20/month monthly), and Max (from $100/month) plans, plus Team and Enterprise plans with custom pricing via contact sales.